General Description
The MAX4249–MAX4257 low-noise, low-distortion operational amplifiers offer Rail-to-ail®outputs and single supply operation down to 2.4V. They draw only 400µA of quiescent supply current per amplifier while featuring ultra-low distortion (0.0002% THD), as well as low input voltage noise density (7.9nV/√Hz) and low input current noise density (0.5fA/√Hz). These features make the devices an ideal choice for portable/battery-powered applications that require low distortion and/or low noise.

FEATUREs
♦Low Input Voltage Noise Density: 7.9nV/√Hz
♦Low Input Current Noise Density: 0.5fA/√Hz
♦Low Distortion: 0.0002% THD (1kΩload)
♦400µA Quiescent Supply Current per Amplifier
♦Single-Supply Operation from +2.4V to +5.5V
♦Input Common-Mode Voltage Range Includes Ground
♦Outputs Swing within 8mV of Rails with a 10kΩLoad
♦3MHz GBW Product, Unity-Gain Stable (MAX4250–MAX4254)
22MHz GBW Product, Stable with AV≥10V/V
(MAX4249/MAX4255/MAX4256/MAX4257)
♦Excellent DC Characteristics:
VOS= 70µV
IBIAS= 1pA
Large-Signal Voltage Gain = 116dB
♦Low-Power Shutdown Mode:
Reduces Supply Current to 0.5µA
Places Outputs in a High-Impedance State
♦400pF Capacitive-Load Handling Capability
♦Available in Space-Saving SOT23 and µMAX Packages